Swaging machine



H. H. DIEHL SWAGING MACHINE July 21, v1925.

Filed May s. 1924 5 Sheets-Sheet 5 1 54', i H H DIEHL 6827 SWAGING MACHINE July 21, 1925.

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Patented July 21, 1925.

UNlilhliEi Price.

HERMAI DIEHL, 0F t-IUFTTINGTUN, WEST VIRGINA, ASSXGNOR TO THEL WEST VIRGINIA Rrifilli CMFANY, 0F HUNTINGTON, WEST VIRGINIA, A CORPORATION 'WEST VIRGNIA.

SWAGXNG MACHINE.

Application tiled May 8,

To all inkom mag/'concern' Be 1t known that l, HERMAN H. Drum.,

a citizen ot the United States, residing` at chines, or which the following; is a specitication.

lilly invention relates, more particularly, to a machine tor ttorminp; railway trop;- points termed Yfrom a bar ot a cross sectional, shape corresponding; with a rail, a section ot rail heine` preferably used, and hent upon itself whereby the diver.fggiiig` arms ot the frog-points are integral with each other at the apex ot the point.

My primary object is to provide a inachine whereby the rail, in heut condition, may `he savaged into the .desired 'torni to form the trogfpoint, and pre't'erahly given substantially its A.final shape.

l have devised my invention for use more particularly, though not to the exclusion ot other uses, in the production ot frog-points ot the construction disclosed in my pending` application `tor U. Si. Letters Patent Serial No. 666,009, Vtiled @ctoher 1, 1923.

The trogpoint oit the application Ajust reterred to is ot a construction whereinthe wehs ot the diverging arm portions, at the portions thereoi2 adjacent the apex ot the frog-point are less divernent than the re-l maining; portions thereof. and to produce this condition Vthe inner tianpje ot the` rail trom which the frog-point is to he torrned is cut away to present a` recess the divx gent walls ot which are lessl d'vergzent at their outer extremities than at the portions thereot nearest the weh ot the rail. rlhus in termin@ a frog-point troni such a. rail, it is necessary that pressure he applied against the sides thereo't, in the forming operation, to inwardly deflect. at hoth sides ot the rail, the weh portions thereof adjacent the juncture ot the walls ot the recess referred to and varyinp;- in divergence, as stated: and in this connection, another ohject or my invention is to provide a machine whereby the frog-point may he 'formed trom a rail prelimiuarily shaped as stated.

Referring to the accompanying' drawingisz- Figure 1 is a view in side elevation ot a machine constructed. in accordance with my 192%. Serial No. l711,811.

1 and viewed in the direction o'j the arrow.

Figure 3 is a plan view of the machine showing` a 'frog point therein and the positions occupied hy the parts et the machine upon the conclusion ot the swaging operation. Figure i is a plan view ot the rail blank trom which the trop; point is to he termed, the blank being; shown in the condition into which it is heut preliminarily to its introduction into the machine. Figure 5 is a` plan view ot the frog point as produced hy the machine. Figure (i is a section taken at the line G on Fig'. 1 and viewed in the direction ot the arrow. Figure .7 is a section talren at the line T on l and viewed in the direction ot the arrow. Figure 8 is a plan view or the hlanlr shown in Fig'. li, heitere it has heen heut 'to the shape shown in the last referred to figure.

VFigure 9 is a hrolren section talren at the irregular line 9 9 on Fig. 3 and viewedrin the direction ot the arrow. Figure 10 is a hrolren section talren at the line 10-10 on Fig. 3 and viewed in the direction ot the arrows. Figure 11 is a hrolren sectional view taken at the line 11 on Fig. 3 and viewed in the direction ot the arrow. Figure 1Q is an enlarged, broken, plan sectional view taken at the line 12 on Fipg. 10 and viewed in the direction ot the arrow. Figure 13 is a hrolten sectional view taken at the line 13 on Fig'. 12 and viewed in the direction oit' the arrow; and Figure 14, an inner edge view oi' the pair of jaws torminfr parts oi the machine.

its a preface'to the following?,1 description ot the parts ot the machine. and the manner in which the latter operates, it may he stated that the production oi; a trog-point of the particular construction hereinabove referred Jtri-involves the provision ot a rail, or similar body, which is preliminarily mutilated at portions thereof to cause it to present the torni shown in Fie'. 8, the head 15 ot the rail at opposite sides thereoi and one hase Flange ot the rail, being out away at points midway between the endsV ot the rail, as represented at 16, 17 and 18, respectively, these cut away portions presenting the converging1 surfaces as represented at 19, 2O and 21, respectively, the points at which the converging surfaces 19 and 2O intersect ly Cil ing in the same plane transversely of the rail, as shown, and the surfaces 19 being more divergent than the surfaces 2l.

Referring now to the machine illustrated in the drawings, the machine comprises a base-portion 22 presenting` a flat, table-like, portion 3. Superposing the table top 3 is a pair of lever-members 24 and 25 pivotally connected together by a pivoting pin 2G passing through both of these members, between the ends thereof. and mounted at its opposite ends, respectively in the base 22 and in a yoke 27 secured to the table top 23 as by the screws 28. 'Vl-lie lever-members 24 and 25 which are disposed at opposite sides of the axis of the pivot 2G, as shown, present the jaws and by which, in the operation of the machine, the blank, from which the frog-point is to be formed, is swaged into the desired shape, it being understood that these jaws are divergent and are capable, by reason of the pivot 2S of being swung back and forth relative tc each other. the power, for operating these jaws as stated. in accordance with the preferred illustrated embodiment of my invention, being applied to the ends of the lever-members 24 and 25 at the side of the pivot 26 opposite that at which the jaws extend, as hereinafter described.

The inner faces of the jaws 29 and 30 at which portions the frog-point blank, to be swaged into the desired shape, is engaged, are directly opposed, as shown, and as a der sirable arrangement for causing the machine to present the condition just referred to and provide for the location of the levermembers 24 and 25 at opposite sides of the axis of the pivot 26, the lever-member 25 at the portion thereof through which the pivot 26 extends, is formed with the vertically spaced, parallel, plate portions 8l, which project laterally therefrom and form a bifurcation, the lever-meinber 24 being provided with a circular disk-like portion 32 which is located within the space afforded between the parts 3l of the lever-member 24, the pivot 26 extending through the parts 3l and 32, as shown.

rlhe means shown by which the aws 29 and 30 are moved toward and away from each other, comprise links 33 and 34 pivotally connected, at 35 and 36 respectively, with the ends of the lever-inembers 24 and 25 opposite those affording the `iaws 29 and 30, the links 33 and 34 which are arranged in overlapping relation at their inner ends (Fig. 6) containing` circular openings 3'? and 88, respectively, extending therethrough and in which eccentrics 39 and 40 rigidly secured to the upper end of a vertical shaft 4l, are liournalled, respectively, the eccentrics 89 and 40 being disposed 1800 apart. The shaft 4l is journalled at its upper end in a yoke 42 rising from, and secured to, the

table-portion 23 of the machine, as by screws 43, and is journalled at its lower end in the base 22 of the machine, which latter is recessed around the shaft 4l, as illustrated at 44. ny suitable means for driving the shaft 4l may be provided, those shown being of a more or less conventional type and providing for the automatic stopping of the machine upon the completion of a single rotation of the shaft 41. The mechanism shown comprises a bevel-gear 45 located in the recess 44 and jonrnalled on the lower end of 'the shaft 4i, this gear meshing with a bevel-pinion 46 carried by a shaft 47 jonrnalled in the base-portion of the machine and driven from any suitable source of power. The bevel-gear 45 carries one of the co-operating elements of a clutch device, the other co-operating element of which is a sliding clutch sleeve 4S splined to the shaft 4l, as indicated at 47H. rthe interengaging portions of the clutch elements referred to comprise clutch teeth 48 and 4) provided on the gear and the sleeve 4G, respectively, and adapted to mesh to drive the shaft 41 from the gear when the sleeve 4S lowers trom the position shown in Fig. (3. fr coil spring 50 surrounding` the shaft 4l and bearing at its outer end against the upper wall of the recess 44 and at its lower end against the top of the sleeve 46n operatcs to force the sleeve 46 into clutching engagement with the bevel-gear 45 under the control of clutch positioning mechanism comprising a am 52 provided on the underside of a continuous fiange 53 on the sleeve 4G, and a sliding pin 54 reciprocable in an opening' 55 in the base of the machine and adapted to normally assume the inwardly projected position shown in Fig. 6 under the action of coil spring- 55 confined between a head 5.7 on the pin and a plug 58 secured in the base at the outer end of the recess 59 in which the spring is located. theA pin 54 sliding` in this plug. ,4s is common in machines comprising mechanism of the general character now being described for automatically stopping the rotation of a shaft after it has made one complete rotation. the cam 52 occupies a small portion only of the circumference of the flange 53. and the pin 54 in normal position entends inwardly beyond the outer surface of the tl ange the parts being so constructed and arranged that when that portion of the flange 53 which is unprovided with the cam, extends opposite the pin 54, the spring 50 is free to force the sleeve 46 into clutched relation withl the clutch. member on the gear 45, but when the underside of the cam 52 rides upon the pin the sleeve 4G will be raised, against the action of the spring` 50, to a position in which this sleeve is unelutched from the gear 25. The pin 54 is associated with operating mechanism cominto a recess 82 in the table top.

prising a hell-crank lever (30 tnlcrumed at G1 on the hase of the machine, one arin oi this hell-crank being pivotally connected at G2 with the outer end of the pin 54s and its other arin heine,` pivotally connected at with the ripper end ot a linlr 64, the lower end ot which latter is pivotally connected at with one end of a lever 66 ulcruined at 67 on theloase ot the `inaehine. The opposite end of this lever is in the forni ot a treadle (38, and a coil spring; 69 connected with the hase 22 of the inachine and with the lever 66 operates to yieldingly rock the lever (i6 in cloclwise direction in l, or in other words in a direction tending to `torce the pin 54e inwardly.

The inner, opposed, portions oi the jaws 99 and 30 are in the iorin ot removable blocks 70 shown as provided on their onter 'iaces throughout a portion only oil their leno'th.` with rihs il which V[it into recesses.

72 in the body-portions ot the aws, to which latter the hloclrs 70 are ri ggidly secured, hy the bolts 73. Theopposino' inner faces ot the loloclrs 70 are oit a cross-sectional shape Correspendingwith onehalt ot the cross-sectional contour ot the rail, except the hase tlanpge thereot.` as shown in Figs. 9 and l0, whereby the inner surtaces oit the jaws oonioriningly tit the sides oi the rail to he swaged into the il`rog-noint and entend art way over the head ot the rail. The inner faces oit the jaws are provided with hars represented at 'lll which are secured thereto as by the loolts 75 theV heads 7G ot which eittend in interlocking; relation with the walls ot recesses .77 in the nieinher 70, these recesses opening throuojh the 'faces ot the member 70 at lon gitndin ally extending slots 753 through which the holts 75 ertend. Thns the har may he adjusted thereoi2 along); the ineinhers to canse theni to operate as stops ttor the rear ends ot the divergent arms ot the de'lornied hlanlr ot lling. 4f, during the process ot swaojingg; the latter. The machine is also provided with a loloclr 79 which is positioned to entend between the divergent arrns o't the deformed blank ot liigr. 4, at the outer ends oi the latter and he heldagtainst displacement hy interlocking with the telaio-portion 9?, this interlock, in the particular consti-notion shown, heine' e'lleeted hy iin-ovidinfr the rod 9,0 which is carried hy the nienilier 79 and is adapted to extend at its downwardly leent portion 8l The ends ot the nieinher .79 are shaped to canse then'i to contorinino'ljv nt aogainst the inner, opposed, sides ot the \,\.'ehportions ot the leent rail and cont'orniinglv lit the npner sintaces ot the adjacent hase flanges and the under surfaces ot the head-portions of the rail, as shown in Fig. 10.

A description egt the operation of the inachine is as Jfollows, the machine being shown iii one oi the positions it assumes while op erating. .ssinning that the machine is at rest, in which condition the cani 553 hears downwardly against the pin 5e directly loeneath it and the eeve 46a is thns in raised ched 'troni the gear 4:5, in hieh position ot the parte, thej aws and 30 are swung outwardly to extend at a greater dr'ergence relative to each other, than as shown in the drawings, the detorined blank ot Fig. 4i, which is niade irorn the inni ilated rail section of Fig. 8, by preliminar-ila heat ino` the rail at its central portion and hending it to the position in Fig. fi, is introduced. into the machine to rest on the tahle top between the jaws 29 and 30, with its outer extremities opposingr the stootorming` ends ot the hars 7st, and the hloclr T9 then applied to the machine to the position shown with its ends opposingl the inner surfaces ot the divergijing` arins oi the detorined hlanlt ot llin. Il.. The detornied rail having` heen introduced into the machine to the desired position, the operator presses downwardly on the treadle 68 therehy withdrowingv the pin 54 from engagenient with the cani 52 with the result that the spring 50 forces the sleeve 46a into clutched relation with the gear l5 and the shat't il is thereupon rotated, the shaft continning,l rotation until it has inode one complete rotation, during which time the operator has released pressure` on the treadle with the resnlt that the pin 54- is in a position to oppose the cani 52 which latter in riding against the pin torces the sleeve 46a ont ot clutching engagement with the gear il- 5. Rotation oit the shaft lil, as stated, causes the levers 224i and 25 to rock on the pivot 26 in a direction to move the 29 and 30 toward each other 'tor swaginp; the deformed hlanl: ot Fig. 4. into the condition shown in Fig. 5. Tt twill he noted that in the strnetnre shown in Fig. 5, the weli-portions ot the rail at the portions thereot, represented at 83 are less divergent than the reinainingl1 portions thereo't represented at 84e, and that the edgeqiortions ol the side i'ianges ot the rail., and represented at 85, a djaeent the apen portion, are lees diverthan the reniaining; side portions thereot. This condition is produced h v so shani ing the inner, opposed, 'faces the liloehs 70 where they v'the weh-portions and the side flange portions ot the hlanku as to eri:- ert a deilecting' pressure aoainstthese parts in the swapging operation, the iteatnre ot jiroriding the` surfaces it) and 2l o'l' vi* 'ng convergence, as shown and descriheil, ferniitting ot the deflection ot the welis and side flangesl ot the railV as shown and de# scrihed, the opposed surfaces and the opposed surfaces 19 in the iorined structure of Fig. 5 losing' substantially in contact.

The effect ot providing a machine as stated, is to not only.7 canse the arms ot .the

structure of Fig. 5 to present the desired divergence, but also causes the apex portion of the point to be formed as shown, duc to the fact that the metal, at the apex portion of the structure being` formed, is caused to be squeezed in a direction toward the axis of the pivot 2G resulting in the production of the desired pned ape-i. The bloe.. S9 is of particular value where the webs and side rail i'ianges are to be deflected as shown in Fig. 5, as it serves as ystop gage, insuring the desired angle of divergence of the arms of the frog-point.

In the particular illustrated embodiment of my invention, the extent of the movement of the lever-members 2Liand 25 toward and away from each other in the operation of the actuating means therefor, remains fixed, and thus to provide for the making of frog-points having different angles of divergence, it is necessary to provide dierent shapes and sizes of block .70, and different lengths of members 79, the arrangement shown permitting of the ready removal from, and attachment to, the body-portions of the lever members 24- and 25, of the blocks 70 of any desired shape.

lf desired the frog-point of Fig. 5 may be machined at its side flanges to cause its lateral converging edges to extend in alignment with the adjacent edges 86, instead of diverging therefrom as represented at 85. The opposed portions of the frog-point at the apex thereof may be secured together, if desired, in any desired manner, as for example by welding the mutually contacting surfaces of the frog-point either at its upper surface or lower surface, or at both surfaces and if desired the frog-point may be formed with a hard metal insert at its apex portion, as disclosed in my above referred to application.

l.Vhile I have illustrated and described a particular construction embodying my invention, I do not wish to be understood as intending to limit it thereto as the same may be variously modified and altered without departing from the spirit of my invention.

'Vhat l claim as new, and desire to secure by Letters Patent is:

l. A swaging machine comprising a pair of relatively movable jaws, means for effecting movement of said aws to cause the same to approach each other in converging relation to engage and shape a frog-point blank disposed between the same, and means adapted to engage the outer ends of the frog-point blank to prevent rearward movement of the blank.

2. A swaging machine comprising a pair of relatively movable jaws, means for effecting movement of said aws to cause the same to approach each other in converging relation to engage and shape a frog-point blank disposed between the same, and means on said jaws adapted to engage the outer ends of the frog-point blank to prevent rearward movement of the blank.

3. A swaying machine comprising a pair of relativelyY movable jaws, means for effecting movement of said jaws to cause the same to approach each other in converging relation to engage' and shape a frog-point blank disposer between the same, means adapted to engage the outer ends of the frog-point blank to prevent rearward movement of the blank, and means, stationary relative to said jaws and spaced therefrom, for engaging the inner surfaces of the article to be swaged and gaging the angle at which the arm portions of the frog-point diverge.

Il. A swaging machine comprising a pair of relatively movable aws, means for effecting movement of said aws to cause the same to approach each other in converging relation to engage and shape a frog-point blank disposed between the same, and means adapted to engage the outer ends of the frog-point blank to prevent rearward movement of the blank and force the metal of the blank forwardly into the apex portion of the jaws.

5. A swaging machine comprising a pair of pivoted jaws, means for producing relative movement of said jaws about said pivot to cause said jaws to approach each other in converging relation to engage and shape a frog-point blank disposed between the same, the working faces of said jaws converging toward the axis upon which said jaws are pivoted and being so disposed vthat the planes in which they extend intersect short of said axis, and means adapted to engage the outer ends of the frog-point blank to prevent rearward movement of the blank.

6. A swaging machine comprising a pair of pivoted jaws, means for producing relative movement of said jaws about said pivot to cause said jaws to approach each other in converging relation to engage and shape a frog-point blank disposed between the same, the working faces of said jaws converging toward the axis upon which said jaws are pivoted and being so disposed that the planes in which they extend intersect short of said axis, and means adapted to engage the outer ends of the frog-point blank to prevent rearward movement of the blank and force the metal of the blank forwardly into the apex portion of the j aws.V

HERMAN H. DIEHL. 

